MYC and neoplasm: Strikingly, elevated α-PheRSCys levels induced tumor-like phenotypes in both anterior and posterior areas of the larval midgut (outlined with white dashed lines, Fig 3E and 3F) while the elevation of wild-type Myc::α-PheRS only gave rise to high numbers of AMPs in the posterior larval midgut (Fig 3C and 3D).